Eric Barnes of Skowhegan pleaded guilty last week to a felony drug charge and a misdemeanor falsifying evidence charge in connection with the November death of 52-year-old Marilyn Rider.

FARMINGTON, Maine (AP) _ A fifth person has pleaded guilty to charges connected to the drug-overdose death of a Farmington woman after her birthday party.

Eric Barnes of Skowhegan pleaded guilty last week to a felony drug charge and a misdemeanor falsifying evidence charge in Franklin County Superior Court in connection with the November death of 52-year-old Marilyn Rider.

The Sun Journal reports that a violation of condition of release charge was dismissed as part of the plea agreement.

The 28-year-old Barnes is scheduled to be sentenced next month.

The medical examiner says Rider had a high level of morphine in her blood when she died and prosecutors say Barnes either prepared the morphine solution or injected the woman.